LOANS RECEIVABLE AND OTHER INVESTMENTS - Schedule of Loans Receivable and Other Investments (Details) $ in Thousands	Jun. 30, 2016 USD ($) loan	Dec. 31, 2015 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	14
Loans Receivable, Principal Balance	$ 85,253
Loans Receivable, Book Value	$ 85,503	$ 274,484
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	9.40%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	9.10%
Loan loss allowance	$ (6,160)	(4,300)
Loans Receivable, Net Amount	$ 79,343	270,184
Preferred Equity Investment, Quantity | loan	11
Preferred Equity Investment, Principal Balance	$ 40,599	29,643
Preferred Equity Investment, Book Value	$ 40,957	29,993
Preferred Equity Investment, Weighted Average Contractual Interest Rate / Rate of Return	12.90%
Preferred Equity Investment, Weighted Average Annualized Effective Interest Rate / Rate of Return	12.90%
Total Investments, Quantity | loan	25
Total Investments, Principal Balance	$ 125,852
Total Investments, Book Value	$ 120,300	300,177
Total Investments, Weighted Average Contractual Interest Rate / Rate of Return	10.50%
Total Investments, Weighted Average Annualized Effective Interest Rate / Rate of Return	10.30%
Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	6
Loans Receivable, Principal Balance	$ 54,211
Loans Receivable, Book Value	$ 54,282	166,277
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	9.10%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	8.90%
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	3
Loans Receivable, Principal Balance	$ 15,339
Loans Receivable, Book Value	$ 15,444	75,201
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	9.90%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	9.80%
Mezzanine [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	1
Loans Receivable, Principal Balance	$ 9,640
Loans Receivable, Book Value	$ 9,666	15,613
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	11.00%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	10.80%
Pre-development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	3
Loans Receivable, Principal Balance	$ 3,847
Loans Receivable, Book Value	$ 3,895	3,768
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	9.00%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	7.70%
Debtor-in-possession [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	1
Loans Receivable, Principal Balance	$ 2,216
Loans Receivable, Book Value	$ 2,216	$ 13,625
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	5.00%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	5.00%